Value proposition

It's not a day — It's a movement.

EARTHDAY.ORG’s mission is to diversify, educate and activate the environmental movement worldwide. Growing out of the first Earth Day, EARTHDAY.ORG is the world’s largest recruiter to the environmental movement, working with more than 150,000 partners in nearly 195 countries to build environmental democracy. More than 1 billion people now participate in Earth Day activities each year, making it the largest civic observance in the world. We work through a combination of education, public policy, and consumer campaigns.

The first Earth Day on April 22, 1970, activated 20 million Americans from all walks of life and is widely credited with launching the modern environmental movement. The passage of the landmark Clean Air Act, Clean Water Act, Endangered Species Act and many other groundbreaking environmental laws soon followed. Twenty years later, Earth Day went global, mobilizing 200 million people in 141 countries and lifting environmental issues onto the world stage.